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Simplifying 4x2 = 15x + 19 Reorder the terms: 4x2 = 19 + 15x Solving 4x2 = 19 + 15x Solving for variable 'x'. Reorder the terms: -19 + -15x + 4x2 = 19 + 15x + -19 + -15x Reorder the terms: -19 + -15x + 4x2 = 19 + -19 + 15x + -15x Combine like terms: 19 + -19 = 0 -19 + -15x + 4x2 = 0 + 15x + -15x -19 + -15x + 4x2 = 15x + -15x Combine like terms: 15x + -15x = 0 -19 + -15x + 4x2 = 0 Factor a trinomial. (-1 + -1x)(19 + -4x) = 0Subproblem 1
Set the factor '(-1 + -1x)' equal to zero and attempt to solve: Simplifying -1 + -1x = 0 Solving -1 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -1x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -1x = 0 + 1 -1x = 0 + 1 Combine like terms: 0 + 1 = 1 -1x = 1 Divide each side by '-1'. x = -1 Simplifying x = -1Subproblem 2
Set the factor '(19 + -4x)' equal to zero and attempt to solve: Simplifying 19 + -4x = 0 Solving 19 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-19' to each side of the equation. 19 + -19 + -4x = 0 + -19 Combine like terms: 19 + -19 = 0 0 + -4x = 0 + -19 -4x = 0 + -19 Combine like terms: 0 + -19 = -19 -4x = -19 Divide each side by '-4'. x = 4.75 Simplifying x = 4.75Solution
x = {-1, 4.75}
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